code: def postclone_check_head(ds, remote="origin"):
      repo = ds.repo
      if not repo.commit_exists("HEAD"):
          # HEAD points to an unborn branch. A likely cause of this is that the
          # remote's main branch is something other than master but HEAD wasn't
          # adjusted accordingly.
          #
          # Let's choose the most recently updated remote ref (according to
          # commit date). In the case of a submodule, switching to a ref with
          # commits prevents .update_submodule() from failing. It is likely that
          # the ref includes the registered commit, but we don't have the
          # information here to know for sure. If it doesn't, .update_submodule()
          # will check out a detached HEAD.
          remote_branches = (
              b["refname:strip=2"]
              for b in repo.for_each_ref_(
                  fields="refname:strip=2",
                  sort="-committerdate",
                  pattern="refs/remotes/" + remote,
              )
          )
          for rbranch in remote_branches:
              if rbranch in [remote + "/git-annex", "HEAD"]:
                  continue
              if rbranch.startswith(remote + "/adjusted/"):
                  # If necessary for this file system, a downstream
                  # git-annex-init call will handle moving into an
                  # adjusted state.
                  continue
              repo.call_git(
                  [
                      "checkout",
                      "-b",
                      rbranch[len(remote) + 1 :],  # drop "<remote>/"
                      "--track",
                      rbranch,
                  ]
              )
              lgr.debug("Checked out local branch from %s", rbranch)
              return
          lgr.warning(
              "Cloned %s but could not find a branch " "with commits",
              ds.path,
          )
  
imports: import logging
  from argparse import REMAINDER
  from typing import Dict
  from datalad.cmd import CommandError
  from datalad.config import ConfigManager
  from datalad.distribution.dataset import Dataset, EnsureDataset, datasetmethod, require_dataset, resolve_path
  from datalad.interface.base import Interface, build_doc, eval_results
  from datalad.interface.common_opts import location_description, reckless_opt
  from datalad.interface.results import get_status_dict
  from datalad.support.annexrepo import AnnexRepo
  from datalad.support.constraints import EnsureKeyChoice, EnsureNone, EnsureStr
  from datalad.support.exceptions import CapturedException
  from datalad.support.network import RI, PathRI
  from datalad.support.param import Parameter
  from datalad.utils import knows_annex, PurePath, rmtree
  from .clone_utils import _check_autoenable_special_remotes, _format_clone_errors, _generate_candidate_clone_sources, _get_remote, _get_tracking_source, _map_urls, _test_existing_clone_target, _try_clone_candidates, decode_source_spec, postclone_preannex_cfg_ria, postclonecfg_ria
label_desc: Use image node_id 9 for calling a global function with example usage: postclone_check_head(ds, remote) without return types